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Resonant Spin Excitation in Single Crystal of Ba0.3K0.7Fe2As2
We recently observed a resonant spin excitation in Ba1-xKxFe2As2 (x=0.4), one of the newly discovered iron arsenide superconductors with Tc=38K, on MERLIN. This demonstrates... -
Coupled magnetic and nematic fluctuations in S-doped FeSe
Iron selenide (FeSe) is the simplest of the iron-based superconductors. It has a nematic (tetragonal to orthorhombic) phase transition at T = 90K. Upon doping with sulphur, the... -
CEF scheme investigation of selected CenTmIn3n+2m (T=Rh, Pt) compounds
Due to the tunable interplay between magnetism and superconductivity the CenTmIn3n+2m (n, m = 1, 2; T = Co, Ir, Rh, Pd, Pt) family of heavy fermion compounds has been attractive... -
Relaxation dynamics of a Dy-based single molecule magnet
Single-molecule magnets (SMM) exhibiting slow magnetic relaxation have attracted increasing interest, both from a fundamental point of view, and for the potential practical... -
The search for long range exchange interactions in the S=1 square lattice ant...
Exchange interactions in insulators can be understood in terms of the Andersen exchange picture in which the Hamiltonian has two contributions: (i) a kinetic term characterized... -
Inelastic neutron scattering investigation of the giant phonon anomalies due ...
The electron-phonon interaction is a major factor influencing the competition between collective instabilities in correlated-electron materials, but its role in driving... -
Magnetic excitation in Sr2IrO4 : Establishing links to Cuprate superconductors
The strontium iridate Sr2IrO4 has recently received a special attention because of its closeresemblance to undoped high-Tc cuprate in terms of structural, electronic, and... -
Alkali ions dependent collective excitations in borate glasses
Recently, it has been suggested that the First Sharp Diffraction Peak (FSDP) in glasses arises from a quasi-periodicity of void spaces in the structure, that plays the role of...
